Region ready for the eclipse: Jeannette Reyes reports during Action News at 5 a.m. on August 21, 2017.

Three hundred people are expected, and the kids will help record data to send to scientists at NASA.

Park Ranger Vytas Masalaitis said, "As the sun gets blocked, obviously there's less solar radiation. That's going to cool the temperature of the air so that's one of the things we're going to have the students look at and see what the temperature drop is."

Delaware Valley preps for official watch parties. Trish Hartman reports during Action News at 11 p.m. on August 20, 2017.

For a less scientific way to celebrate - McGillin's Old Ale House in Center City is offering a special drink called the Solar Eclipse. A citrus martini served with a shot of black Sambuca.

For the big effect there, make sure you're wearing your special glasses.

Bartenders say they expect to see quite a few Solar Eclipses tomorrow, the drink, that is.

Bartender Nathan Hicks said, "Whether it's election season or football season, if there's a seasonal drink, people go crazy for 'em. Absolutely."

We found some folks who plan to watch the eclipse and they are excited and ready to see this phenomenon for themselves.

Mitchell Johnson of Center City said, "Probably because I've never had a chance to see one of these before in my life. And I may not again. So I figure you've got to take the chance while you've got it."

Morrighan McGovern of Collingswood, NJ said, "I'm kind of excited to watch history for my own generation."